This is a very good paint for blocks, durable, easily capable of withstanding block temperatures, you don't need 'engine paint'. In fact you can use Dulux if you want to, but this is better.

Keep a cloth handy wetted with cellulose thinners to wipe machined faces clean, don't put much if any on engine mounting points etc. Only the back and front are painted, not the ends where there are things like seal housings and tensioner.